Chapter 19

Chapter 18 is titled - "Tea at the Treedome, Part 2".

Summary
While in the middle of drinking their Tea, Sandy remembered she forgot to do something inside of the Tree House. Knowing this is his chance to get some water, he tries opening the door to the Treedome, but is unable to due to his weakness. He notices Patrick outside of the dome and asks for his aid. As Sandy exits the Tree House, she notices Spongebob and Patrick struggling to open the door from each side. Sandy tells Spongebob that he should of told her that he couldn't breathe the air and offers him a Head Bowl filled with Water. Spongebob is finally able to breathe and apologizes to Sandy for not telling her sooner. Sandy smiles and says how he shouldn't be shy to inform her of life-threatening things like this. Spongebob asks Sandy if Patrick could join them and she agrees. The three then continue drinking the tea, during which Spongebob asks Sandy for what reasons she came to Bikini Bottom.